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Feb 2016 (Martin Holmer)
Add Net Investment Income Tax to FIT.
Cap child and dependent care credit by secondary earnings.
Fix 2015 tax parameters to IRS supplied values
Jan 2016 (Matt Jensen)
Update dollar values for actual inflation as per:
https://www.irs.gov/pub/irs-drop/rp-15-53.pdf
Dec 2015 (Seth Hartig)
Correction to EITC for Ohio and Maryland
Dec 2015 (Zogby)
Fix EITC for 2016+
July 2015 (Jon Rork)
Fix Arkansas to tax "other income" (box 10) previously ignored.
March 2015 (Martin Holmer)
Fix capital gains 5% surtax for 2014+.
March 2015 (Gabriel Chodorow-Reich)
Fix treatment of marginal tax on UI in state tax calculator.
March 2015 (David Rosnick)
Fix Zero bracket amounts for 2014-2015.
Jan 2015 (Elaine Maag)
Tax credit in Indiana for 2012 only.
August 2014 (Jon Rork)
Correct treatment of pensions in DC and PA.
November 2013 (Cristobal Young)
Add 2005+ Mental Health Tax increase
October 2013 (Aaron Twaite)
Correction to 2011 MN tax standard deduction.
July 2013 (Nicolas Duquette)
Fix Idaho charitable contributions and standard deduction for 1982-1986.
January 2013 (Martin Holmer)
Fix EIC parameters for 2012 to exact values from IRS "Draft"
instruction booklet.
January 2013 (Spencer Smith)
Exact FICA parameters for 2013.
April 2013 (Martin Holmer)
Fix interaction of capital gains rates with AMT for 2013+. Fix
dollar values of AMT parameters to correctly rounded figures.
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